STEP-BY-STEP EXPLANATION
What to find? Mass number of an element
Given parameters
Number of protons = 15
Number of neutron = 16
Number of electrons = 15
Considering the atomic struc
The formula for calculating the mass number of an element is given below as
[tex]\text{Mass number (A) = Number of protons + Number of neutrons}[/tex]The next thing is to substitute the
